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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 29, Iss. 9 — Sep. 1, 2012
  • pp: 2548–2553

Guided surface plasmon mode of semicircular cross section silver nanoridges

Junpeng Guo and Zeyu Pan  »View Author Affiliations

JOSA B, Vol. 29, Issue 9, pp. 2548-2553 (2012)

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Tightly confined plasmon waveguide modes supported by semicircular cross section top silver nanoridges are investigated. Mode field profiles, dispersion curves, propagation distances, confinement factors, and figures-of-merit of the semicircular top silver nanoridge plasmon waveguide mode are calculated for different radii of curvature at different wavelengths. It is found that semicircular top silver nanoridges support tightly confined quasi-transverse electromagnetic (TEM) and quasi-cylindrical plasmon waveguide modes. The surface plasmon mode of a semicircular top silver nanoridge waveguide has longer propagation distance and higher figure-of-merit than the surface plasmon mode of a cylindrical silver nanowire of the same radius of curvature.

© 2012 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: June 11, 2012
Revised Manuscript: July 21, 2012
Manuscript Accepted: July 23, 2012
Published: August 29, 2012

Junpeng Guo and Zeyu Pan, "Guided surface plasmon mode of semicircular cross section silver nanoridges," J. Opt. Soc. Am. B 29, 2548-2553 (2012)

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